| Interface | Description | 
|---|---|
| MemoizeCache | Represents a memoize cache with its essential methods | 
| Class | Description | 
|---|---|
| LRUCache | A cache backed by a Collections.SynchronizedMap | 
| Memoize | Implements memoize for Closures. | 
| NullProtectionStorage | A NullObject pattern implementation for ProtectionStorage Doesn't protect any resources. | 
| UnlimitedConcurrentCache | A cache backed by a ConcurrentHashMap |